Controlled switching between paramagnetic and diamagnetic Meissner effect in Pb/Co nanocomposites

Details Controlled switching between paramagnetic and diamagnetic Meissner effect in Pb/Co nanocomposites Controlled switching between paramagnetic and diamagnetic Meissner effect in Pb/Co nanocomposites

2008-12-04

arxiv.org/abs/0812.0847v1

Physics

Condensed Matter

Superconductivity

5 pages, 3 figures

Scientific paper

A hybrid system which consists of a superconducting (SC) Pb film (100 nm thickness) containing $\sim$1 vol% single domain ferromagnetic (FM) Co particles of mean-size $\sim$4.5 nm reveal unusual magnetic properties: (i) a controlled switching between the usual diamagnetic and the unusual paramagnetic Meissner effect in field cooling as well as in zero-field cooling experiments (ii) amplification of the positive magnetization when the sample enters the SC state below T$_c$. These experimental findings can be explained by the formation of spontaneous vortices and the possible alignment of these vortices due to the foregoing alignment of the Co particle FM moments by an external magnetic field.

Affiliated with

Also associated with

No associations

Rating

Controlled switching between paramagnetic and diamagnetic Meissner effect in Pb/Co nanocomposites does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Controlled switching between paramagnetic and diamagnetic Meissner effect in Pb/Co nanocomposites, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlled switching between paramagnetic and diamagnetic Meissner effect in Pb/Co nanocomposites will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-135522